A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6650-01-399-0628
NSN 5999-01-587-7734
NSN 5996-01-400-0917
NSN 6320-01-296-3181
NSN 5910-01-572-3559
NSN 6610-00-405-6461
NSN 6685-01-231-6903
NSN 6240-01-649-2171
NSN 6320-00-937-5625
NSN 5905-01-506-1221
NSN 6610-01-310-3313
NSN 5985-01-381-7469